Filters and Filtering

Hurry, we need to take advantage of the wiki before it is obsolete! I dipped into the subject of fitlers and filtering today and was overwhelmed.

I started at:

http://www.ala.org/Template.cfm?Section=Intellectual_Freedom_Issues&Template=/ContentManagement/ContentDisplay.cfm&ContentID=29043#policies

What current filters and policies are in place?

What federal requirements are we subject to?

I thought this site was to the point:

http://www.rm.com/Support/TechnicalArticle.asp?cref=TEC5752